public class tset {
    public static void main(String[] args) {
        MySingleList mySingleList=new MySingleList();
        mySingleList.addFirst(12);
        mySingleList.addFirst(23);
        mySingleList.addFirst(34);
        mySingleList.addFirst(45);
        mySingleList.addFirst(56);
        mySingleList.display();
    }
}
